- acoustick (obsolete)
French acoustique, from Ancient Greek ἀκουστικός (akoustikós, “auditory”), from Proto-Indo-European *h₂ḱh₂owsyéti (“to be sharp-eared”), from *h₂eḱ- (“sharp”) + *h₂ows- (“ear”) + *yé- (denominative suffix).
acoustic (not comparable)
- Pertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory.
- (music) Naturally producing or produced by an instrument without electrical amplification, as an acoustic guitar or acoustic piano.
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acoustic (plural acoustics)